Slag discharging device of blast furnace

• Main Authors: LIN YANHUI, ZHAO XIANGJUN, SONG YONGQIANG
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2023
• Subjects: CHEMISTRY; MANUFACTURE OF IRON OR STEEL; METALLURGY; METALLURGY OF IRON

The invention discloses a blast furnace slag discharge device which comprises a slag discharge channel connected with a blast furnace slag outlet and a channel nozzle arranged at the end of the slag discharge channel, a water spraying device is arranged below the channel nozzle, molten slag is discharged from the blast furnace slag outlet and flows down through the slag discharge channel and the channel nozzle, and slag flow is quenched through water flow sprayed by the water spraying device and then discharged into the slag discharge channel. The vertical height between the slag-water mixing tank and the ditch nozzle is 1-2 m; the section shape of the slag discharge channel and the channel mouth comprises a semicircular bottom and two side walls tangent to the semicircular bottom, and the two side walls are respectively inclined towards the outer side; the water quenching effect can be improved, an obtained slag-water mixture is free of large blocks, operation is safe, meanwhile, slag cotton or slag fibers c